#1473 - remembering filters 

- when switching tabs
- when click "show all ..."
- when searching
- when sorting
#1459 show full name for all filter options so they are searchable

- reduce height by CSS
- show full height onhover
#1473 making sure "q" doesn't appear twice in the URL
Merge pull request #1586 from OCHA-DAP/remembering-filters

Pull request for: Remembering filters and full name in filter options